The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2002
Filed:
Oct. 19, 1998
Robert E. Rockwood, Windham, NH (US);
Environamics Corporation, Hudson, NH (US);
Abstract
A labyrinth seal for use in a centrifugal pump. The seal may eliminate rotating surfaces from rubbing directly against groove surfaces during installation thereby eliminating or reducing the scraping of material from rotating surfaces. Therefore, generation of fine powder from such scraping is reduced or substantially eliminated. A stationary covering is provided over the outer surface or periphery of a rotating member in order to make maintenance personnel less susceptible to injury. No heat process is required for assembly (although some may be used in certain embodiments). A radial trap system is provided for enhancing performance of the seal, including a recess or cutout in the face of a stationary member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile